Synopsis

Critical: seamonkey security update

Type/Severity

Security Advisory: Critical

Topic

Updated seamonkey packages that fix two security issues are now available
for Red Hat Enterprise Linux 4.

The Red Hat Security Response Team has rated this update as having critical
security impact. Common Vulnerability Scoring System (CVSS) base scores,
which give detailed severity ratings, are available for each vulnerability
from the CVE links in the References section.

Description

SeaMonkey is an open source web browser, email and newsgroup client, IRC
chat client, and HTML editor.

A flaw was found in the way SeaMonkey handled frame objects with certain
names. An attacker could use this flaw to cause a plug-in to grant its
content access to another site or the local file system, violating the
same-origin policy. (CVE-2011-2999)

An integer underflow flaw was found in the way SeaMonkey handled large
JavaScript regular expressions. A web page containing malicious JavaScript
could cause SeaMonkey to access already freed memory, causing SeaMonkey to
crash or, potentially, execute arbitrary code with the privileges of the
user running SeaMonkey. (CVE-2011-2998)

All SeaMonkey users should upgrade to these updated packages, which correct
these issues. After installing the update, SeaMonkey must be restarted for
the changes to take effect.

Solution

Before applying this update, make sure all previously-released errata
relevant to your system have been applied.

This update is available via the Red Hat Network. Details on how to
use the Red Hat Network to apply this update are available at
https://access.redhat.com/kb/docs/DOC-11259

Affected Products

• Red Hat Enterprise Linux Server 4 x86_64
• Red Hat Enterprise Linux Server 4 ia64
• Red Hat Enterprise Linux Server 4 i386
• Red Hat Enterprise Linux Workstation 4 x86_64
• Red Hat Enterprise Linux Workstation 4 ia64
• Red Hat Enterprise Linux Workstation 4 i386
• Red Hat Enterprise Linux Desktop 4 x86_64
• Red Hat Enterprise Linux Desktop 4 i386
• Red Hat Enterprise Linux for IBM z Systems 4 s390x
• Red Hat Enterprise Linux for IBM z Systems 4 s390
• Red Hat Enterprise Linux for Power, big endian 4 ppc

Fixes

• BZ - 741904 - CVE-2011-2999 Mozilla: XSS via plugins and shadowed window.location object (MFSA 2011-38)
• BZ - 741924 - CVE-2011-2998 Mozilla: Integer underflow when using JavaScript RegExp (MFSA 2011-37)

CVEs

• CVE-2011-2999
• CVE-2011-2998

References

• https://access.redhat.com/security/updates/classification/#critical

Red Hat Enterprise Linux for IBM z Systems 4

SRPM
s390
seamonkey-1.0.9-76.el4.s390.rpm	SHA-256: f74ce712ed2bc628bd04958e302dddab252ebf864cfc40d85149588e64f1eaa2
seamonkey-chat-1.0.9-76.el4.s390.rpm	SHA-256: ab1d058ae8d73baf45c9488bd9e50299e21bcba3f0994d0fff879653c1a79438
seamonkey-devel-1.0.9-76.el4.s390.rpm	SHA-256: 241e5b8c581a83ab917df2e2c5ad2e7da3757c45e11a4f7a36eb0d82368c2106
seamonkey-dom-inspector-1.0.9-76.el4.s390.rpm	SHA-256: c07969cb65ee7862b75d41f38e63c18735ea18e3dc5b2e9ea5d1d0cd04cefee2
seamonkey-js-debugger-1.0.9-76.el4.s390.rpm	SHA-256: 0ed9a3b924cbf28a7be652fab7f2dfdc5fd55cc41579dc42762ec8a96390a81d
seamonkey-mail-1.0.9-76.el4.s390.rpm	SHA-256: 8552e3769cf458c969f2200fb8a94ee67b41c80cfbc50030d507d85d3349178a